Post quality examples of wikis from other disciplines here.
Art
art110 - Superb example of the many ways a wiki can be used to support teaching and learning . . . note the publication of student work (photo of the week), engaging students with text (daily questions), etc.
Business
Forbes.com Corporate Org Chart Wiki - Allows you to view (reorganize, and submit?) org charts of Fortune 500 companies, with links to "people trackers," etc.
Historical Thinking - Useful example of how a wiki can be used to scaffold student work. Also a nice resource for professional development re: historical thinking. The section on layering is particularly useful and applicable to other disciplines.
Art
art110 - Superb example of the many ways a wiki can be used to support teaching and learning . . . note the publication of student work (photo of the week), engaging students with text (daily questions), etc.
Business
Forbes.com Corporate Org Chart Wiki - Allows you to view (reorganize, and submit?) org charts of Fortune 500 companies, with links to "people trackers," etc.
How to Use Wikis for Business
Second Life Business Communicators Wiki
The Biz Wiki - Collection of business resources provided by Ohio.
Geography
Wikimapia - Let's describe the whole world! - Allows users to annotate Google Earth maps in a variety of languages
Higher Ed
Transliteracy / Participatory Media Literacy - Interesting, wiki-based course and resources re: social media
History
Historical Thinking - Useful example of how a wiki can be used to scaffold student work. Also a nice resource for professional development re: historical thinking. The section on layering is particularly useful and applicable to other disciplines.
Music
Literary Allusions in Popular Music - South Lyon HS, MI teachers
Science
Code Blue - Interesting example of how a science teacher has organized students into teams to work on "real world" problems
Wiktroscopy: A Wiki-based Knowledge and Learning Tool
The Science of Spectroscopy - NICE wiki designed for educational purposes around the topic of spectroscopy
Technology
Open Source Windows - Downloadpedia - A wiki catalog of downloadable open source software
Wealth of Networks - Main Page - WikiNotes - Benkler's wiki with links to a full electronic copy of the book, Wealth of Networks